Editing 600 series connector (section)

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[[File:6oo series connectors.jpg|thumb|right|600 series connectors]]

A '''600 series connector''' is an obsolete three-pin connector with up to six conductors.

It was for many years the standard [[Plain old telephone service|telephone service]] connector in [[Australia]], used on rural [[Party line (telephony)|party line]]s and the national [[Postmaster-General's Department]] (later [[Telstra]]) landline network, but has since the 1970s been superseded by the six position [[modular connector]] in this application. {{As of|2008}} a large installed base remained and a large variety of connectors, adapters and equipment such as [[ADSL]] filters were still in production and readily available.

It has no other common or standard use, either within Australia or beyond. However it is manufactured in other countries, usually in China, for export to Australia.

The 600 series plug has up to three flat pins plus a non-conducting spigot, which ensures correctly oriented insertion. Each pin carries up to two conductors by means of two contacts, one on each side of the pin. The pin bodies are of a non-conductive plastic material.